His young son and daughter were killed a decade ago by a driver under the influence of alcohol and prescription pills.

Pack’s campaign already is armed with $2 million in funding and will begin this summer. The initiative might also seek to lift the cap on damages in medical malpractice cases.

The goal is to get the measure on the November 2014 ballot. A spokesman for the California Medical Association called the effort a ‘‘publicity stunt.’’

The San Francisco Chronicle reported that Pack has enlisted the help of consumer advocate Harvey Rosenfield, who was behind a 1988 measure regulating the insurance industry, as well as former Clinton White House adviser Chris Lehane, whose trial lawyer clients have donated $2 million.

A new poll found that 85 percent of California voters favor random testing of physicians.